Here's a nice quote for you about the nature of science (courtesy of a commenter over at Open Parachute):
There are two ways in which I think science, as a way of learning about the natural world can be distinguished from other proposed methods. First, science is not a personal and private experience. It is available equally to all and is identical regardless of gender, creed, etc. It is not dependent on private revelation or a personal experience. Secondly, it is self correcting. Nothing in science is held to be absolutely true; everything is provisional and ready to be discarded or modified when evidence shows science and reality to differ.